Irregular sudoku printable pdf#
If you prefer to play irregular sudoku on paper, then you can download and print a PDF containing 100 jigsaw sudoku puzzles and solutions via Jigsaw Sudoku Magazine. To play this puzzle type online, visit the Jigsaw Sudoku page at the Puzzle Club with lots of irregular sudoku to play online at 6圆 and 9x9 sizes. Related puzzles Arrow Sudoku, Calcudoku, Circle Sudoku, Consecutive Sudoku, Futoshiki, Graeco-Latin Sudoku, HyperSudoku, Isosudoku, Killer Sudoku, Offset Sudoku, Outside Sudoku, Samurai Sudoku, Star Sudoku, Sudoku, Sudoku X, Toroidal Sudoku The Daily Sudoku also provides 12x12 puzzles, using the numbers 1 to 9 and letters A, B and C, and the huge 16x16 puzzles, with the numbers 0 to 9 and letters A to F. The actual rules that one uses to solve jigsaw sudoku are as with normal sudoku but one may find that certain rules get used more frequently than with standard sudoku in order to make progress. Typically with a jigsaw sudoku one would expect to see less givens than with a regular sudoku due to the restrictive impact that the irregular shaped regions have on the solve path and thus potential values for each cell compared with regular 3x3 regions. There are some grid patterns where there are a huge number of valid sudokus that can be made whilst there are others where none at all can be made!
Irregular sudoku printable free#
There is a huge range of different shapes for the jigsaw regions, and sometimes these will be symmetrical and other times not so. We have developed several completely free generators for you to use to make your own worksheets quick and easy. Some people prefer irregular, or jigsaw, sudoku to the regular puzzle, because each puzzle grid is different and plays differently due to the differing irregular shaped regions, in contrast to regular sudoku where the regions are always the same. This is due to the fact that the irregular regions are harder to keep track of with the eye and the pencil making pencilmarks, and so quite often one can forget that cells that are quite distant from the one you are looking at can affect the value of that cell (if they are in the same irregular region that, say, wanders across the grid considerably). Irregular sudoku puzzles can be quite a lot harder than standard sudoku puzzles.
However, unlike sudoku, the bold-outlined regions are not regular 3 x 3 boxes, but rather all sorts of irregular shapes that fit together like jigsaw pieces: hence the other name for this puzzle, jigsaw sudoku. These range from beginner-level up to more advanced puzzles that are perfect for. The instructions are as with sudoku: place 1 - n once in each row, column and bold-outlined region. You can play Sudoku online and we offer a great selection of free Sudoku games.
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